Standard Flanged & Dished Bottom dimensions

[Muud]

I am designing a small mixing vessel and from my research the standard flanged and dished bottom seems to be the best choice for keeping particles in suspension. However, I am not able to find info/suggestions on choosing the dimensions of the standard flanged and dished bottom. The vessel in question is not pressurized (atmospheric pressure) and not built according to a specific code/standard. Could you please give some tips or link to some resource regarding the design of this type of tank bottom.
Thanks

 

[MJCronin]

Be aware that "Standard Flanged and Dished" vessel heads do not have to conform to specific Code dimensions like ASME F&D heads

The best source of information are the people that offer these for sale .... Like the kind and helpful people at "Brighton Tru-Edge"

http://ibn2g2ots063g6m9m3zft8o7.wpe...ads/2017/11/Brighton_IDD_Standard_FD_2017.pdf

MJCronin
Sr. Process Engineer

 

[JStephen]

If you are fabbing the tank, contact your head supplier.
If you will be purchasing the fabricated tank, contact some of the fabricators.
The standard non-code head dimensions will vary from one head supplier to another.
If dimensions are not especially critical, just specify an F&D head, a minimum tank volume, and let the fabricators work it out.
Welded pipe caps would be another option, and I don't know how pricing or availability varies.

 

[Muud]

Thanks all for your pointers.

@MJCronin, in addition to your link I also found some general size info on the F&D heads on their website. At least I am a bit more informed


@JStephen,

We will be outsourcing the tank fabrication to an external supplier so he needs to source all parts. But I was suspected I needed to provide them dimensions of the head too.

The dimensions are not critical but I thought "Standard" F&D will have some specific criteria to work out the dimensions for different tank sizes.

From some photos on google image search, the welded pipe caps seemed similar to a dished head. Or I am missing some substantial differences between the two?